56 R. HOSKING. 
Lithium Chloride Solution, Temperature 20°75° ©. 
Pressure Time [Correction 7 n 
(h) (LT) x 10° (mean) 
198°8 cm.| 57°2 sec; 150 01201 ). 
ie | 56-4, 1 Gils | eomigs , be 
1793, | 628 ., | 136 01204 
1791 "| 628 7 | 138 | -o1i97 } bei 
151-0.,, | 731 ., | 118 01200 } | - 
Nie , | 73:0, | 118 4) <obo0 i sae 
127-1. | 856 , | 101 01197 ) | 
Vio7-0 asa 2 | 101 | outs eit 
1005 » |106-6 , | 81 01200 )\| aaa 
+ 100-0 " l106¢8 | 681 | 01203 : 
Average °01200 
NoTE oN A CUPRIFEROUS PORPHYRITE and QUARTZ 
VEINS In THE NELLIGEN DISTRICT. 
By H. I. JENSEN, D. sc. 
[Read before the Royal Society of N.S. Wales, June 3, 1908. ] 
ON a recent trip to the South Coast Districts I was 
interested to find between Nelligen and Braidwood, near 
Sugarloaf Mountain, an extensive outcrop of a dark basaltic 
looking porphyrite which contained fragments of native 
copper and small masses of carbonates and silicates of 
copper. Local residents informed me that lumps of native 
copper up to 70 tbs. in weight had been obtained in this 
rock, but all endeavours to find ‘the lode’ had been fruitless. 
Mr. Meares, by whose aid I was directed to the spot, and 
I picked out numerous small pieces of copper and copper 
ores which appeared to be sprinkled about in certain por-- 
tions of thelava. In other places these small metalliferous 
inclusions were wanting. 
